Home / 66,528,822.40-99,807,230.40-21,095,209.60

Finding the Fourth Proportional to 66,528,822.40, 99,807,230.40 and 21,095,209.60

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Solution

The fourth proportional to 66,528,822.40, 99,807,230.40 and 21,095,209.60 is: 31,647,252.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,528,822.40 : 99,807,230.40 = 21,095,209.60 : x
  2. Step 2: Convert to fraction form
    66,528,822.40/99,807,230.40 = 21,095,209.60/x
  3. Step 3: Cross multiply
    66,528,822.40x = 99,807,230.40 × 21,095,209.60
  4. Step 4: Simplify right side
    66,528,822.40x = 2,105,454,444,883,492
  5. Step 5: Solve for x
    x = 2,105,454,444,883,492/66,528,822.40
  6. Step 6: Final answer
    x = 31,647,252.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.